The thesis focuses on problems and diagnosis selected preconceptions TechnicalEducation. In the theoretical part was approached theory of constuctivism, pupil concept of curriculum, preconceptions, Data collection methods and content oftechnicaleducation on the primary school. Practical part represents the rate for structuring preconceptions usingquestionnaires and cognitive maps. The practical part provides information mation about the research, processing the results and subsequent conclusions drawn. The questionnaires were students 4. and 5. class Králův Dvůr.